 | Liv Ullmann als Ann Stanley |
 | Edward Albert als Peter Latham |
 | Gene Kelly als Billy Boylan |
 | Binnie Barnes als Maud Ericson |
 | Deborah Raffin als Trina Stanley |
 | Billy Green Bush als J.D. Rogers |
 | Nancy Walker als Mrs. Margie Margolin |
 | Don Porter als Mr. Latham |
 | Rosemary Murphy als Mrs. Latham |
 | Natalie Schafer als Mrs. Adams |
 | Sam Chew Jr. als Arthur Forbes |
 | Claudia Jennings als Gabriella |
 | Brooke Palance als Polly |
 | Eugene Jackson als Party Dancer (uncredited) |
 | Andrea True als Woman (uncredited) |
| Milton Katselas | Director |
| Leonard Gershe | Screenplay |
| Michel Legrand | Original Music Composer |
| Robert Clatworthy | Production Design |
| M.J. Frankovich | Producer |
| Charles Lang | Director of Photography |
| David E. Blewitt | Editor |
| George James Hopkins | Set Decoration |
| Julie Pitkanen | Script Supervisor |
| Ralph James Hall | Assistant Editor |
| Abe Lincoln Jr. | Assistant Editor |
| Edna Taylor | Costumer |
| Guy C. Verhille | Costume Supervisor |
| Virginia Darcy | Hairstylist |
| Jack Freeman | Makeup Artist |
| Tony Lloyd | Makeup Artist |
| Jan Van Uchelen | Hairdresser |
| Jean Louis | Costume Design |
| Mike Frankovich Jr. | Unit Production Manager |
| William J. O'Sullivan | Production Manager |
| Yannis Petropoulakis | Production Manager |
| Joe LaBella | Property Master |
| Pierre Barillet | Writer |
| Jean-Pierre Grédy | Writer |
| Jay Presson Allen | Writer |
| Conrad E. Palmisano | Stunt Double |
| Dick Moder | Assistant Director |
| David Hawks | Assistant Director |
| Arnold L. Rich | Camera Operator |
| Al Overton | Sound Mixer |
| Arthur Piantadosi | Sound Recordist |
| Ralph James Hall | Music Editor |
| Maury Nemoy | Title Designer |
